MIG or gasless wire welding, Which would be best to use Options

[sj914]

What would be better to use for our cars. MIG or gassless flux wire welding. I've been trying to research this by going to the manufacturerers websites, but I thought I'd ask the guys who do their own body and chassis work on here.

[LvSteveH]

It depends on who you talk to. Flux core is great if you are working outdoors where wind is an issue, but it is messy, and generally burns a bit hot to use on light metal. If you go with conventional mig, and a Co2/argon mix (75/25), it will be cooler, easier to control, and much cleaner. Straight Co2 as a shielding gas is cheaper, but it penetrates deeper and isn’t quite as clean. If you know you will be doing mainly thin body panel type stuff, it’s worth picking up a roll of thin wire just for that purpose. I’m sure someone with more expertise will be more specific. I’ve heard some say that mig can be too brittle for some jobs, but I haven’t seen too many problems. Even oxy/acetylene can be used with good results in the right hands. Tig is just awesome, but few have the equipment or skill to do it properly. Mig has a very short learning curve, and you should be getting decent results quickly. Good luck